Here are three of Audels pocket manuals. That may be of interest here. Since Some are in the trade of lifting and attaching iron, and most that have a shop. Need a electrical help or clarification now and then.AudelsPipefitters and welders pocket manualby: Charles N. McConnellISBN#0-02-034624-7copyrightę1997 small trade paperbackMacmillan Publishing

From soup to nuts these cover a generous amount of information in a small package. Lots of drawings, photo's, charts and tables. Not in depth on any one area, but enough to get through most things that come up and stump the experts.As these are for the working in the trade. But are great for the occasional user.*